* {
    box-sizing: border-box;
}

*/ html,
body {
    margin: 0;
    padding: 0;
}

:root {
    --accent-color: #45494E;
    --gradient-color: #FBFBFB;
}

a:after {
    content: "";
    background: #FBFBFB;
    position: absolute;
    bottom: 5px;
    left: 15px;
    height: 3px;
    width: 0;
    transition: .5s;
    transition-delay: .2s;
}

.menu {
    position: fixed;
    top: 100px;
    left: 100px;
    width: 100px;
    font-size: 12px;
    z-index: 999;
}

.menu>ol {
    list-style: none;
    padding: 0;
}

.menu>ol>li {
    background: #3c3c3c;
    border-left: 5px solid var(--gradient-color);
    margin-bottom: 1px;
    position: relative;
    transition: .5s;
    width: 50px;
    height: 50px;
}

.menu>ol>li:nth-child(1) {
    --accent-color: #FDA085;
    --gradient-color: #F6D365;
}

.menu>ol>li:nth-child(2) {
    --accent-color: #BFF098;
    --gradient-color: #6FD6FF;
}

.menu>ol>li:nth-child(3) {
    --accent-color: #EA8D8D;
    --gradient-color: #A890FE;
}

.menu>ol>li:nth-child(4) {
    --accent-color: #D8B5FF;
    --gradient-color: #1EAE98;
}

.menu>ol>li:nth-child(5) {
    --accent-color: #C6EA8D;
    --gradient-color: #FE90AF;
}

.menu>ol>li:nth-child(6) {
    --accent-color: #8dbaea;
    --gradient-color: #FE90AF;
}

.menu>ol>li a {
    color: #FBFBFB;
    display: block;
    padding: 15px;
    position: relative;
    text-decoration: none;
    z-index: 1;
}

.menu>ol>.active:after {
    background: linear-gradient(to left, var(--accent-color), var(--gradient-color));
    max-width: 800px;
}

.menu>ol>li:focus .sub-menu,
.menu>ol>li:focus-within .sub-menu {
    max-height: 500px;
}

.menu>ol>li:after {
    background: #3c3c3c;
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    transition: .5s;
    max-width: 0;
    overflow: hidden;
}

a:hover:after {
    width: 50px;
}

a:after {
    left: 0;
    right: 0;
    margin: auto;
}

.active>a:after {
    width: 50px;
    left: 0;
    right: 0;
    margin: auto;
}

.menu>ol {
    display: block;
    max-width: none;
    text-align: center;
}

.menu>ol>li {
    border-top: 5px solid var(--accent-color);
    border-left: 0;
    display: inline-block;
    margin-left: -5px;
    vertical-align: top;
    width: 150px;
}

.menu>ol>.active:after {
    background: linear-gradient(to bottom, var(--accent-color), var(--gradient-color));
    border-radius: 3px;
    top: -5px;
    bottom: -5px;
    left: -5px;
    right: -5px;
}

.container-div {
    margin: 0;
    padding: 0;
}


/* .content1 {
    padding: 0 250px;
    height: 700px;
    background: -webkit-linear-gradient(to bottom, #fda0856b, #f6d36585);
    background: linear-gradient(to bottom, #fda0856b, #f6d36585);
}

.content2 {
    padding: 0 250px;
    height: 700px;
    background: -webkit-linear-gradient(to bottom, #bff0986b, #6fd6ff85);
    background: linear-gradient(to bottom, #bff0986b, #6fd6ff85);
}

.content3 {
    padding: 0 250px;
    height: 700px;
    background: -webkit-linear-gradient(to bottom, #ea8d8d6b, #a890fe85);
    background: linear-gradient(to bottom, #ea8d8d6b, #a890fe85);
}

.content4 {
    padding: 0 250px;
    height: 700px;
    background: -webkit-linear-gradient(to bottom, #d8b5ff6b, #1eae9885);
    background: linear-gradient(to bottom, #d8b5ff6b, #1eae9885);
}

.content5 {
    padding: 0 250px;
    height: 700px;
    background: -webkit-linear-gradient(to bottom, #c6ea8d6b, #fe90af85);
    background: linear-gradient(to bottom, #c6ea8d6b, #fe90af85);
}

.content6 {
    padding: 0 250px;
    height: 700px;
    background: -webkit-linear-gradient(to bottom, #8dbaea6b, #fe90af85);
    background: linear-gradient(to bottom, #8dbaea6b, #fe90af85);
}